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Imogolite as a Material for Fabrication of Inorganic Membranes

Published online by Cambridge University Press:  25 February 2011

Jeffrey C. Huling ,
Joseph K. Bailey ,
Douglas M. Smith  and
C. Jeffrey Brinker
Jeffrey C. Huling
Affiliation:
UNM/NSF Center for Micro-Engineered Ceramics, University of New Mexico, Albuquerque, NM 87131
Joseph K. Bailey
Affiliation:
Sandia National Laboratories, Ceramic Synthesis and Inorganic Chemistry Department, Albuquerque, NM 87185
Douglas M. Smith
Affiliation:
UNM/NSF Center for Micro-Engineered Ceramics, University of New Mexico, Albuquerque, NM 87131
C. Jeffrey Brinker
Affiliation:
Sandia National Laboratories, Ceramic Synthesis and Inorganic Chemistry Department, Albuquerque, NM 87185
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Abstract

Imogolite is a structurally microporous tubular clay comprising one-dimensional pore channels that are 0.8 – 1.2 nm in diameter, depending on composition. The microporous structure of natural and synthetic imogolite has been investigated by nitrogen adsorption as a function of outgassing temperature. A significant increase in adsorption at low relative pressure (P/P0 ∼ 10-6) after 275°C outgassing reflects a high concentration and narrow distribution of 0.8 – 0.9 nm diameter pores (i.e., the imogolite tubes) and supports the potential use of imogolite in inorganic membrane applications.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 271: Symposium N – Better Ceramics Through Chemistry V , 1992 , 511
Copyright
Copyright © Materials Research Society 1992

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